产品概述 返回TOPsF2嘉泰姆

The CXCH76028 series are a standalone linear Li-Ion battery charger with a complete precharge, constant current, and constant voltage charge loop. The CXCH76028 series offer integrated two power source, USB-port and ac-adapter with autonomous power source selection, power MOSFET, charge status, high accuracy current and voltage regulation, and charge termination. In the USB configuration, 100mA or 500mA of charge rates could be selected by ISET2. In the ac-adapter configuration, charge current can be set by an external resistance. The charge voltage is regulated at 4.2V, and CXCH76028 series charge cycle would be terminated automatically based on minimum current after the final regulation voltage is reached. An internal charge timer provides a backup safety for charge termination. Other features include undervoltage lockout, overvoltage lockout, over temperature protection and auto-recharge if the battery voltage falls below an internal threshold.

   产品特点 返回TOPsF2嘉泰姆

  „ No External Power MOSFET, Sense Resistor or Blocking Diode Required sF2嘉泰姆

„ 1% Regulation Voltage Accuracy sF2嘉泰姆

„ Accepting USB and AC-Adapter Power Sources with Autonomous Power-Source Selection sF2嘉泰姆

„ Overvoltage Lockout for Adapter and USB Input sF2嘉泰姆

„ USB Control For Selectable 100mA and 500mA Charge Rate sF2嘉泰姆

„ Programmable Charge Current Limit up to 1A From AC-adapter sF2嘉泰姆

„ Automatic Recharge „ Complete Precharge, Constant Current, Constant Voltage and Charge Termination sF2嘉泰姆

„ Charge Procedure with Safety Timer sF2嘉泰姆

„ Support for 5V Power Supply Voltage sF2嘉泰姆

„ Optional Power Good Indication (AC Adapter Present) sF2嘉泰姆

„ Optional Battery Temperature Monitoring sF2嘉泰姆

„ Internal Thermal Protection Circuit sF2嘉泰姆

„ 3mm × 3mm TDFN PackagesF2嘉泰姆

   应用范围 返回TOPsF2嘉泰姆

„ MP3 Players sF2嘉泰姆

„ Cellular Phones, Smartphone sF2嘉泰姆

„ PDAs, Digital Cameras sF2嘉泰姆

„ Hand-Held DevicessF2嘉泰姆

   技术规格书（产品PDF) 返回TOP sF2嘉泰姆

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